LinuxLists.cc - 2.6.28-rc5: Reported regressions from 2.6.27

2008-11-16 18:23:16

Subject: 2.6.28-rc5: Reported regressions from 2.6.27

[NOTES:
(1) Due to some recent controversies, in future I will only use 'Handled-By'
tags for people who actually submit a patch or provide substantial help to
the reporter (like advising him which commits to revert etc.).
(2) We have almost as many regressions with patches as unresolved ones and
the majority of these patches have not been merged for over two weeks
(for almost three weeks in many cases and for over a _month_ in one case).
IMO, this is insane.]

This message contains a list of some regressions from 2.6.27, for which there
are no fixes in the mainline I know of. If any of them have been fixed already,
please let me know.

If you know of any other unresolved regressions from 2.6.27, please let me know
either and I'll add them to the list. Also, please let me know if any of the
entries below are invalid.

Each entry from the list will be sent additionally in an automatic reply to
this message with CCs to the people involved in reporting and handling the
issue.

Listed regressions statistics:

Date Total Pending Unresolved
----------------------------------------
2008-11-16 89 32 18
2008-11-09 73 40 27
2008-11-02 55 41 29
2008-10-25 26 25 20

Unresolved regressions
----------------------

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12049
Subject : Oops in acpi_system_wakeup_device_seq_show
Submitter : Bruno Prémont <[email protected]>
Date : 2008-11-16 13:04 (1 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0794469da3f7b2093575cbdfc1108308dd3641ce
References : http://marc.info/?l=linux-kernel&m=122684070215520&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12041
Subject : 2.6.28-rc4 mem_cgroup_charge_common panic
Submitter : Badari Pulavarty <[email protected]>
Date : 2008-11-10 21:43 (7 days old)
References : http://marc.info/?l=linux-kernel&m=122635343008147&w=4
Handled-By : KAMEZAWA Hiroyuki <[email protected]>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12040
Subject : iwlagn driver segfault in 2.6.28-rc3
Submitter : Lukas Hejtmanek <[email protected]>
Date : 2008-11-11 14:34 (6 days old)
References : http://marc.info/?l=linux-kernel&m=122641417331593&w=4
Handled-By : reinette chatre <[email protected]>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12034
Subject : snd-hda-intel on Realtek ALC268 chip shows only Master volume (for playback)
Submitter : Sergey <[email protected]>
Date : 2008-11-15 04:20 (2 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12031
Subject : DRM enabled kernel hangs hard on resume on x60
Submitter : Jens Axboe <[email protected]>
Date : 2008-11-12 18:42 (5 days old)
References : http://marc.info/?l=linux-kernel&m=122651551216820&w=4
Handled-By : Jesse Barnes <[email protected]>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12028
Subject : i915 DRM is broken in 2.6.28-rc4
Submitter : Adam Tkac <[email protected]>
Date : 2008-11-14 01:50 (3 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12019
Subject : Major increase in the number of wakeups from C3
Submitter : Mircea Gherzan <[email protected]>
Date : 2008-11-13 07:02 (4 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11996
Subject : Tracing framework regression in 2.6.28-rc3
Submitter : Pekka Paalanen <[email protected]>
Date : 2008-11-09 10:13 (8 days old)
References : http://marc.info/?l=linux-kernel&m=122624392229317&w=4
Handled-By : Steven Rostedt <[email protected]>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11970
Subject : gettimeofday return a old time in mmbench
Submitter : alexs <[email protected]>
Date : 2008-11-06 23:57 (11 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=99ebcf8285df28f32fd2d1c19a7166e70f00309c
Handled-By : Ingo Molnar <[email protected]>
Thomas Gleixner <[email protected]>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11965
Subject : regression introduced by - timers: fix itimer/many thread hang
Submitter : Doug Chapman <[email protected]>
Date : 2008-11-06 11:03 (11 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f06febc96ba8e0af80bcc3eaec0a109e88275fac
References : http://marc.info/?l=linux-kernel&m=122596943416648&w=4
Handled-By : Frank Mayhar <[email protected]>
Peter Zijlstra <[email protected]>
Ingo Molnar <[email protected]>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11958
Subject : [2.6.27.x => 2.6.28-rc3] Xorg crash with xf86MapVidMem error
Submitter : Tomasz Chmielewski <[email protected]>
Date : 2008-11-05 05:37 (12 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11947
Subject : 2.6.28-rc VC switching with Intel graphics broken
Submitter : Romano Giannetti <[email protected]>
Date : 2008-11-03 12:10 (14 days old)
Handled-By : Jesse Barnes <[email protected]>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11913
Subject : USB/INPUT: slab error in cache_alloc_debugcheck_after(): double free?
Submitter : Helge Deller <[email protected]>
Date : 2008-10-30 23:11 (18 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=cb8f488c33539f096580e202f5438a809195008f
References : http://marc.info/?l=linux-kernel&m=122540833301394&w=4
Handled-By : Jiri Kosina <[email protected]>
Jiri Slaby <[email protected]>
Jiri Kosina <[email protected]>
Jiri Slaby <[email protected]>
Denys Vlasenko <[email protected]>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11906
Subject : 2.6.28-rc2 seems to fail at powering down the monitor when it should
Submitter : Gene Heskett <[email protected]>
Date : 2008-10-30 6:39 (18 days old)
References : http://marc.info/?l=linux-kernel&m=122534879721424&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11905
Subject : lots of extra timer interrupts costing 2W
Submitter : Theodore Ts'o <[email protected]>
Date : 2008-10-30 2:18 (18 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fb02fbc14d17837b4b7b02dbb36142c16a7bf208
References : http://marc.info/?l=linux-kernel&m=122533314305315&w=4
http://marc.info/?l=linux-kernel&m=122541849114444&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11858
Subject : Timeout regression introduced by 242f9dcb8ba6f68fcd217a119a7648a4f69290e9
Submitter : Tejun Heo <[email protected]>
Date : 2008-10-26 9:46 (22 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=242f9dcb8ba6f68fcd217a119a7648a4f69290e9
References : http://marc.info/?l=linux-kernel&m=122501447326698&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11849
Subject : default IRQ affinity change in v2.6.27 (breaking several SMP PPC based systems)
Submitter : Kumar Gala <[email protected]>
Date : 2008-10-24 12:45 (24 days old)
References : http://marc.info/?l=linux-kernel&m=122485245924125&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11822
Subject : ACPI Warning (nspredef-0858): _SB_.PCI0.LPC_.EC__.BAT0._BIF: Return Package type mismatch at index 9 - found Buffer, expected String [20080926]
Submitter : Len Brown <[email protected]>
Date : 2008-10-25 01:26 (23 days old)
Handled-By : Robert Moore <[email protected]>

Regressions with patches
------------------------

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12047
Subject : ACPI toshiba: only register rfkill if bt is enabled
Submitter : Andrey Borzenkov <[email protected]>
Date : 2008-10-28 19:10 (20 days old)
References : http://marc.info/?l=linux-kernel&m=122522113619025&w=2
Handled-By : Frederik Deweerdt <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122526843117478&w=2

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12042
Subject : USB hid blocks USB port in 2.6.28rc3
Submitter : Andi Kleen <[email protected]>
Date : 2008-11-11 0:31 (6 days old)
References : http://marc.info/?l=linux-usb&m=122636246522848&w=4
Handled-By : Alan Stern <[email protected]>
Jiri Slaby <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122661425620251&w=2

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12038
Subject : Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo
Submitter : Tino Keitel <[email protected]>
Date : 2008-11-09 20:28 (8 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=66036f5862883fcc9f7ff8550685a5a3de1a57e4
References : http://marc.info/?l=linux-kernel&m=122626258429689&w=4
Handled-By : Rafael J. Wysocki <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122661443120581&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12020
Subject : scsi_times_out NULL pointer dereference
Submitter : Bernd Schubert <[email protected]>
Date : 2008-11-13 10:30 (4 days old)
Handled-By : James Bottomley <[email protected]>
Patch : http://bugzilla.kernel.org/show_bug.cgi?id=12020#c4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11989
Subject : Suspend failure on NForce4-based boards due to chanes in stop_machine
Submitter : Rafael J. Wysocki <[email protected]>
Date : 2008-11-03 0:28 (14 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c9583e55fa2b08a230c549bd1e3c0bde6c50d9cc
References : http://marc.info/?l=linux-kernel&m=122567187604356&w=4
Handled-By : Rusty Russell <[email protected]>
Patch : http://lkml.org/lkml/2008/11/15/69

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11982
Subject : Fan level 7 after resume wit 2.6.28-rc3
Submitter : Tino Keitel <[email protected]>
Date : 2008-11-05 7:33 (12 days old)
References : http://marc.info/?l=linux-kernel&m=122587043409186&w=4
Handled-By : Henrique de Moraes Holschuh <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=18744&action=view

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11954
Subject : sysprof tracer ABI regression in 2.6.28rc1
Submitter : Eric Anholt <[email protected]>
Date : 2008-11-04 22:14 (13 days old)
Handled-By : Eric Anholt <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=18683&action=view

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11925
Subject : cdrom: missing compat ioctls
Submitter : Andreas Schwab <[email protected]>
Date : 2008-10-31 14:02 (17 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=33c2dca4957bd0da3e1af7b96d0758d97e708ef6
Handled-By : Andreas Schwab <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122548923531545&w=2

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11911
Subject : new PCMCIA device instance after resume - orinoco can't download firmware
Submitter : Andrey Borzenkov <[email protected]>
Date : 2008-10-28 19:19 (20 days old)
References : http://marc.info/?l=linux-wireless&m=122522165719760&w=4
Handled-By : Dave <[email protected]>
Patch : http://marc.info/?l=linux-wireless&m=122539058601588&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11903
Subject : regression: vmalloc easily fail
Submitter : Glauber Costa <[email protected]>
Date : 2008-10-28 20:59 (20 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=db64fe02258f1507e13fe5212a989922323685ce
References : http://marc.info/?l=linux-kernel&m=122522755530998&w=4
Handled-By : Glauber Costa <[email protected]>
Nick Piggin <[email protected]>
Glauber Costa <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122609055221549&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11899
Subject : sometime boot failed on T61 laptop
Submitter : alexs <[email protected]>
Date : 2008-10-30 02:04 (18 days old)
References : http://marc.info/?l=linux-kernel&m=122663989015147&w=4
Handled-By : Tejun Heo <[email protected]>
Yanmin Zhang <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=18860&action=view

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11898
Subject : mke2fs hang on AIC79 device.
Submitter : alexs <[email protected]>
Date : 2008-10-30 01:17 (18 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f0c0a376d0fcd4c5579ecf5e95f88387cba85211
Handled-By : James Bottomley <[email protected]>
Mike Christie <[email protected]>
Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11898#c28
http://bugzilla.kernel.org/show_bug.cgi?id=11898#c36

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11875
Subject : radeonfb lockup in .28-rc (bisected)
Submitter : James Cloos <[email protected]>
Date : 2008-10-28 0:00 (20 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b1ee26bab14886350ba12a5c10cbc0696ac679bf
References : http://marc.info/?l=linux-kernel&m=122515210200530&w=4
http://lkml.org/lkml/2008/11/10/12
Handled-By : Benjamin Herrenschmidt <[email protected]>
Patch : http://lkml.org/lkml/2008/11/10/12

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11828
Subject : Linux 2.6.27-git3: no SD card reader
Submitter : J.A. Magallón <[email protected]>
Date : 2008-10-14 0:54 (34 days old)
References : http://marc.info/?l=linux-kernel&m=122394573904699&w=4
Handled-By : Pierre Ossman <[email protected]>
Patch : http://marc.info/?l=linux-pci&m=122662042229570&w=2

For details, please visit the bug entries and follow the links given in
references.

As you can see, there is a Bugzilla entry for each of the listed regressions.
There also is a Bugzilla entry used for tracking the regressions from 2.6.27,
unresolved as well as resolved, at:

http://bugzilla.kernel.org/show_bug.cgi?id=11808

Please let me know if there are any Bugzilla entries that should be added to
the list in there.

Thanks,
Rafael

2008-11-16 18:23:31

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11822] ACPI Warning (nspredef-0858): _SB_.PCI0.LPC_.EC__.BAT0._BIF: Return Package type mismatch at index 9 - found Buffer, expected String [20080926]

2008-11-16 18:30:54

by Alan

[permalink] [raw]

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

> the majority of these patches have not been merged for over two weeks
> (for almost three weeks in many cases and for over a _month_ in one case).
> IMO, this is insane.]

Some of them are quite serious too - some stuff is basically unusable in
2.6.28rc due to the vmalloc bug.

Is there any reason why someone (Rafael ?) shouldn't simply submit all of
those patches that look sensible, are reported to fix regressions and
whose maintainer has not provided a reason to NOT apply them into the
tree ?

Alan

2008-11-16 18:34:18

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11849] default IRQ affinity change in v2.6.27 (breaking several SMP PPC based systems)

2008-11-16 18:34:39

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11875] radeonfb lockup in .28-rc (bisected)

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11875
Subject : radeonfb lockup in .28-rc (bisected)
Submitter : James Cloos <[email protected]>
Date : 2008-10-28 0:00 (20 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b1ee26bab14886350ba12a5c10cbc0696ac679bf
References : http://marc.info/?l=linux-kernel&m=122515210200530&w=4
http://lkml.org/lkml/2008/11/10/12
Handled-By : Benjamin Herrenschmidt <[email protected]>
Patch : http://lkml.org/lkml/2008/11/10/12

2008-11-16 18:34:53

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11858] Timeout regression introduced by 242f9dcb8ba6f68fcd217a119a7648a4f69290e9

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11858
Subject : Timeout regression introduced by 242f9dcb8ba6f68fcd217a119a7648a4f69290e9
Submitter : Tejun Heo <[email protected]>
Date : 2008-10-26 9:46 (22 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=242f9dcb8ba6f68fcd217a119a7648a4f69290e9
References : http://marc.info/?l=linux-kernel&m=122501447326698&w=4

2008-11-16 18:35:34

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11905] lots of extra timer interrupts costing 2W

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11905
Subject : lots of extra timer interrupts costing 2W
Submitter : Theodore Ts'o <[email protected]>
Date : 2008-10-30 2:18 (18 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fb02fbc14d17837b4b7b02dbb36142c16a7bf208
References : http://marc.info/?l=linux-kernel&m=122533314305315&w=4
http://marc.info/?l=linux-kernel&m=122541849114444&w=4

2008-11-16 18:36:00

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11954] sysprof tracer ABI regression in 2.6.28rc1

2008-11-16 18:36:27

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11898] mke2fs hang on AIC79 device.

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11898
Subject : mke2fs hang on AIC79 device.
Submitter : alexs <[email protected]>
Date : 2008-10-30 01:17 (18 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f0c0a376d0fcd4c5579ecf5e95f88387cba85211
Handled-By : James Bottomley <[email protected]>
Mike Christie <[email protected]>
Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11898#c28
http://bugzilla.kernel.org/show_bug.cgi?id=11898#c36

2008-11-16 18:36:42

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11903] regression: vmalloc easily fail

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11903
Subject : regression: vmalloc easily fail
Submitter : Glauber Costa <[email protected]>
Date : 2008-10-28 20:59 (20 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=db64fe02258f1507e13fe5212a989922323685ce
References : http://marc.info/?l=linux-kernel&m=122522755530998&w=4
Handled-By : Glauber Costa <[email protected]>
Nick Piggin <[email protected]>
Glauber Costa <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122609055221549&w=4

2008-11-16 18:36:58

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11911] new PCMCIA device instance after resume - orinoco can't download firmware

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11911
Subject : new PCMCIA device instance after resume - orinoco can't download firmware
Submitter : Andrey Borzenkov <[email protected]>
Date : 2008-10-28 19:19 (20 days old)
References : http://marc.info/?l=linux-wireless&m=122522165719760&w=4
Handled-By : Dave <[email protected]>
Patch : http://marc.info/?l=linux-wireless&m=122539058601588&w=4

2008-11-16 18:37:28

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11913] USB/INPUT: slab error in cache_alloc_debugcheck_after(): double free?

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11913
Subject : USB/INPUT: slab error in cache_alloc_debugcheck_after(): double free?
Submitter : Helge Deller <[email protected]>
Date : 2008-10-30 23:11 (18 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=cb8f488c33539f096580e202f5438a809195008f
References : http://marc.info/?l=linux-kernel&m=122540833301394&w=4
Handled-By : Jiri Kosina <[email protected]>
Jiri Slaby <[email protected]>
Jiri Kosina <[email protected]>
Jiri Slaby <[email protected]>
Denys Vlasenko <[email protected]>

2008-11-16 18:37:51

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11906] 2.6.28-rc2 seems to fail at powering down the monitor when it should

2008-11-16 18:38:16

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11899] sometime boot failed on T61 laptop

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11899
Subject : sometime boot failed on T61 laptop
Submitter : alexs <[email protected]>
Date : 2008-10-30 02:04 (18 days old)
References : http://marc.info/?l=linux-kernel&m=122663989015147&w=4
Handled-By : Tejun Heo <[email protected]>
Yanmin Zhang <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=18860&action=view

2008-11-16 18:38:38

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11925] cdrom: missing compat ioctls

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11925
Subject : cdrom: missing compat ioctls
Submitter : Andreas Schwab <[email protected]>
Date : 2008-10-31 14:02 (17 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=33c2dca4957bd0da3e1af7b96d0758d97e708ef6
Handled-By : Andreas Schwab <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122548923531545&w=2

2008-11-16 18:38:56

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11947] 2.6.28-rc VC switching with Intel graphics broken

2008-11-16 18:39:22

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11958] [2.6.27.x => 2.6.28-rc3] Xorg crash with xf86MapVidMem error

2008-11-16 18:39:38

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11970] gettimeofday return a old time in mmbench

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11970
Subject : gettimeofday return a old time in mmbench
Submitter : alexs <[email protected]>
Date : 2008-11-06 23:57 (11 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=99ebcf8285df28f32fd2d1c19a7166e70f00309c
Handled-By : Ingo Molnar <[email protected]>
Thomas Gleixner <[email protected]>

2008-11-16 18:39:55

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11965] regression introduced by - timers: fix itimer/many thread hang

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11965
Subject : regression introduced by - timers: fix itimer/many thread hang
Submitter : Doug Chapman <[email protected]>
Date : 2008-11-06 11:03 (11 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f06febc96ba8e0af80bcc3eaec0a109e88275fac
References : http://marc.info/?l=linux-kernel&m=122596943416648&w=4
Handled-By : Frank Mayhar <[email protected]>
Peter Zijlstra <[email protected]>
Ingo Molnar <[email protected]>

2008-11-16 18:40:37

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11996] Tracing framework regression in 2.6.28-rc3

2008-11-16 18:40:55

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11982] Fan level 7 after resume wit 2.6.28-rc3

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11982
Subject : Fan level 7 after resume wit 2.6.28-rc3
Submitter : Tino Keitel <[email protected]>
Date : 2008-11-05 7:33 (12 days old)
References : http://marc.info/?l=linux-kernel&m=122587043409186&w=4
Handled-By : Henrique de Moraes Holschuh <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=18744&action=view

2008-11-16 18:41:21

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12019] Major increase in the number of wakeups from C3

2008-11-16 18:41:43

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12028] i915 DRM is broken in 2.6.28-rc4

2008-11-16 18:41:59

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12020] scsi_times_out NULL pointer dereference

2008-11-16 18:42:23

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #11989] Suspend failure on NForce4-based boards due to chanes in stop_machine

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11989
Subject : Suspend failure on NForce4-based boards due to chanes in stop_machine
Submitter : Rafael J. Wysocki <[email protected]>
Date : 2008-11-03 0:28 (14 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c9583e55fa2b08a230c549bd1e3c0bde6c50d9cc
References : http://marc.info/?l=linux-kernel&m=122567187604356&w=4
Handled-By : Rusty Russell <[email protected]>
Patch : http://lkml.org/lkml/2008/11/15/69

2008-11-16 18:42:40

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12031] DRM enabled kernel hangs hard on resume on x60

2008-11-16 18:42:58

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12034] snd-hda-intel on Realtek ALC268 chip shows only Master volume (for playback)

2008-11-16 18:43:30

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12038] Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12038
Subject : Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo
Submitter : Tino Keitel <[email protected]>
Date : 2008-11-09 20:28 (8 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=66036f5862883fcc9f7ff8550685a5a3de1a57e4
References : http://marc.info/?l=linux-kernel&m=122626258429689&w=4
Handled-By : Rafael J. Wysocki <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122661443120581&w=4

2008-11-16 18:43:48

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12040] iwlagn driver segfault in 2.6.28-rc3

2008-11-16 18:44:14

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12041] 2.6.28-rc4 mem_cgroup_charge_common panic

2008-11-16 18:44:35

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12042] USB hid blocks USB port in 2.6.28rc3

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12042
Subject : USB hid blocks USB port in 2.6.28rc3
Submitter : Andi Kleen <[email protected]>
Date : 2008-11-11 0:31 (6 days old)
References : http://marc.info/?l=linux-usb&m=122636246522848&w=4
Handled-By : Alan Stern <[email protected]>
Jiri Slaby <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122661425620251&w=2

2008-11-16 18:44:52

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12047] ACPI toshiba: only register rfkill if bt is enabled

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12047
Subject : ACPI toshiba: only register rfkill if bt is enabled
Submitter : Andrey Borzenkov <[email protected]>
Date : 2008-10-28 19:10 (20 days old)
References : http://marc.info/?l=linux-kernel&m=122522113619025&w=2
Handled-By : Frederik Deweerdt <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122526843117478&w=2

2008-11-16 18:45:16

by Rafael J. Wysocki

[permalink] [raw]

Subject: [Bug #12049] Oops in acpi_system_wakeup_device_seq_show

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.27. Please verify if it still should be listed and let me know
(either way).

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12049
Subject : Oops in acpi_system_wakeup_device_seq_show
Submitter : Bruno Prémont <[email protected]>
Date : 2008-11-16 13:04 (1 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0794469da3f7b2093575cbdfc1108308dd3641ce
References : http://marc.info/?l=linux-kernel&m=122684070215520&w=4

2008-11-16 18:45:44

by Andrey Borzenkov

[permalink] [raw]

Subject: Re: [Bug #11911] new PCMCIA device instance after resume - orinoco can't download firmware

On Sunday 16 November 2008, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.27. Please verify if it still should be listed and let me know
> (either way).
>

Still valid in rc5. As indicated by

http://marc.info/?l=linux-kernel&m=122679210409961&w=2

pull request was apparently lost.

>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11911
> Subject : new PCMCIA device instance after resume - orinoco can't download firmware
> Submitter : Andrey Borzenkov <[email protected]>
> Date : 2008-10-28 19:19 (20 days old)
> References : http://marc.info/?l=linux-wireless&m=122522165719760&w=4
> Handled-By : Dave <[email protected]>
> Patch : http://marc.info/?l=linux-wireless&m=122539058601588&w=4
>
>
>

Attachments:

(No filename) (885.00 B)
signature.asc (197.00 B)
This is a digitally signed message part. Download all attachments

2008-11-16 18:46:49

by Linus Torvalds

[permalink] [raw]

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

On Sun, 16 Nov 2008, Rafael J. Wysocki wrote:
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12049
> Subject : Oops in acpi_system_wakeup_device_seq_show
> Submitter : Bruno Prémont <[email protected]>
> Date : 2008-11-16 13:04 (1 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0794469da3f7b2093575cbdfc1108308dd3641ce
> References : http://marc.info/?l=linux-kernel&m=122684070215520&w=4

This already got fixed: commit 77fb61a04a0483ad274ce5c51b02c46c12db3693.

> Regressions with patches
> ------------------------
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12042
> Subject : USB hid blocks USB port in 2.6.28rc3
> Submitter : Andi Kleen <[email protected]>
> Date : 2008-11-11 0:31 (6 days old)
> References : http://marc.info/?l=linux-usb&m=122636246522848&w=4
> Handled-By : Alan Stern <[email protected]>
> Jiri Slaby <[email protected]>
> Patch : http://marc.info/?l=linux-kernel&m=122661425620251&w=2

commit 131d3a7a009d56a96cc7117b4e9d0c90c2e2a1dc

> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11954
> Subject : sysprof tracer ABI regression in 2.6.28rc1
> Submitter : Eric Anholt <[email protected]>
> Date : 2008-11-04 22:14 (13 days old)
> Handled-By : Eric Anholt <[email protected]>
> Patch : http://bugzilla.kernel.org/attachment.cgi?id=18683&action=view

commit 072ba49838b42c873c496d72c91bb237914cf3b6

> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11911
> Subject : new PCMCIA device instance after resume - orinoco can't download firmware
> Submitter : Andrey Borzenkov <[email protected]>
> Date : 2008-10-28 19:19 (20 days old)
> References : http://marc.info/?l=linux-wireless&m=122522165719760&w=4
> Handled-By : Dave <[email protected]>
> Patch : http://marc.info/?l=linux-wireless&m=122539058601588&w=4

commit e689597fe890cf22e23195037aa668c39b25ae4b

Linus

2008-11-16 19:24:14

by Rafael J. Wysocki

[permalink] [raw]

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

On Sunday, 16 of November 2008, Linus Torvalds wrote:
>
> On Sun, 16 Nov 2008, Rafael J. Wysocki wrote:
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12049
> > Subject : Oops in acpi_system_wakeup_device_seq_show
> > Submitter : Bruno Prémont <[email protected]>
> > Date : 2008-11-16 13:04 (1 days old)
> > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0794469da3f7b2093575cbdfc1108308dd3641ce
> > References : http://marc.info/?l=linux-kernel&m=122684070215520&w=4
>
> This already got fixed: commit 77fb61a04a0483ad274ce5c51b02c46c12db3693.
>
> > Regressions with patches
> > ------------------------
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12042
> > Subject : USB hid blocks USB port in 2.6.28rc3
> > Submitter : Andi Kleen <[email protected]>
> > Date : 2008-11-11 0:31 (6 days old)
> > References : http://marc.info/?l=linux-usb&m=122636246522848&w=4
> > Handled-By : Alan Stern <[email protected]>
> > Jiri Slaby <[email protected]>
> > Patch : http://marc.info/?l=linux-kernel&m=122661425620251&w=2
>
> commit 131d3a7a009d56a96cc7117b4e9d0c90c2e2a1dc
>
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11954
> > Subject : sysprof tracer ABI regression in 2.6.28rc1
> > Submitter : Eric Anholt <[email protected]>
> > Date : 2008-11-04 22:14 (13 days old)
> > Handled-By : Eric Anholt <[email protected]>
> > Patch : http://bugzilla.kernel.org/attachment.cgi?id=18683&action=view
>
> commit 072ba49838b42c873c496d72c91bb237914cf3b6
>
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11911
> > Subject : new PCMCIA device instance after resume - orinoco can't download firmware
> > Submitter : Andrey Borzenkov <[email protected]>
> > Date : 2008-10-28 19:19 (20 days old)
> > References : http://marc.info/?l=linux-wireless&m=122522165719760&w=4
> > Handled-By : Dave <[email protected]>
> > Patch : http://marc.info/?l=linux-wireless&m=122539058601588&w=4
>
> commit e689597fe890cf22e23195037aa668c39b25ae4b

Thanks a lot, closed all of them.

Best,
Rafael

2008-11-16 20:30:20

by Alan Stern

[permalink] [raw]

Subject: Re: [linux-pm] 2.6.28-rc5: Reported regressions from 2.6.27

On Sun, 16 Nov 2008, Rafael J. Wysocki wrote:

> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11858
> Subject : Timeout regression introduced by 242f9dcb8ba6f68fcd217a119a7648a4f69290e9
> Submitter : Tejun Heo <[email protected]>
> Date : 2008-10-26 9:46 (22 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=242f9dcb8ba6f68fcd217a119a7648a4f69290e9
> References : http://marc.info/?l=linux-kernel&m=122501447326698&w=4

I believe this was fixed by commit
2920ebbd65f3e80c318adf5191ac0987142bda80. Tejun, isn't that right?

Alan Stern

2008-11-16 21:41:23

by Maxim Levitsky

[permalink] [raw]

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

Just to note, here on acer aspire one suspend to disk is broken too.
System suspends, and then hangs.

If I shutdown the system, and then attempt resume, it resumes, and then hangs.

Best regards,
Maxim Levitsky

2008-11-16 22:35:50

by Pekka Paalanen

[permalink] [raw]

Subject: Re: [Bug #11996] Tracing framework regression in 2.6.28-rc3

On Sun, 16 Nov 2008 17:35:18 +0100 (CET)
"Rafael J. Wysocki" <[email protected]> wrote:

> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.27. Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11996
> Subject : Tracing framework regression in 2.6.28-rc3
> Submitter : Pekka Paalanen <[email protected]>
> Date : 2008-11-09 10:13 (8 days old)
> References : http://marc.info/?l=linux-kernel&m=122624392229317&w=4
> Handled-By : Steven Rostedt <[email protected]>

Steve, Ingo, did you get into an agreement on the patch?
What should I test?

I see -rc5 is out, but I didn't spot the fix in the changelog.

(The ring buffer NULL dereference on resize / unallocated max tracer.)

--
Pekka Paalanen
http://www.iki.fi/pq/

2008-11-16 22:44:55

by Steven Rostedt

[permalink] [raw]

Subject: Re: [Bug #11996] Tracing framework regression in 2.6.28-rc3

On Mon, 17 Nov 2008, Pekka Paalanen wrote:

> On Sun, 16 Nov 2008 17:35:18 +0100 (CET)
> "Rafael J. Wysocki" <[email protected]> wrote:
>
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> >
> > The following bug entry is on the current list of known regressions
> > from 2.6.27. Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11996
> > Subject : Tracing framework regression in 2.6.28-rc3
> > Submitter : Pekka Paalanen <[email protected]>
> > Date : 2008-11-09 10:13 (8 days old)
> > References : http://marc.info/?l=linux-kernel&m=122624392229317&w=4
> > Handled-By : Steven Rostedt <[email protected]>
>
> Steve, Ingo, did you get into an agreement on the patch?
> What should I test?
>
> I see -rc5 is out, but I didn't spot the fix in the changelog.
>
> (The ring buffer NULL dereference on resize / unallocated max tracer.)

Ingo's solution was to have the ring_buffer_resize return success on NULL
buffer being passed in. Although I agree that it should not crash when
passed a NULL pointer, I feel that a NULL pointer should return a -1
(failure). The caller of the code (one place in kernel/trace/trace.c)
could simply check if the buffer was allocated, and if not, simply ignore
it.

I agree with Ingo that my original solution was too much churn. But the
simple if statement and "indent" change is what I feel to be the solution,
not letting the ring buffer return success on NULL pointer.

-- Steve

2008-11-17 01:57:19

by Tejun Heo

[permalink] [raw]

Subject: Re: [linux-pm] 2.6.28-rc5: Reported regressions from 2.6.27

Alan Stern wrote:
> On Sun, 16 Nov 2008, Rafael J. Wysocki wrote:
>
>> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11858
>> Subject : Timeout regression introduced by 242f9dcb8ba6f68fcd217a119a7648a4f69290e9
>> Submitter : Tejun Heo <[email protected]>
>> Date : 2008-10-26 9:46 (22 days old)
>> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=242f9dcb8ba6f68fcd217a119a7648a4f69290e9
>> References : http://marc.info/?l=linux-kernel&m=122501447326698&w=4
>
> I believe this was fixed by commit
> 2920ebbd65f3e80c318adf5191ac0987142bda80. Tejun, isn't that right?

Yes, that's right.

Thanks.

--
tejun

2008-11-17 09:36:44

by Ingo Molnar

[permalink] [raw]

Subject: Re: [Bug #11996] Tracing framework regression in 2.6.28-rc3

* Pekka Paalanen <[email protected]> wrote:

> On Sun, 16 Nov 2008 17:35:18 +0100 (CET)
> "Rafael J. Wysocki" <[email protected]> wrote:
>
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> >
> > The following bug entry is on the current list of known regressions
> > from 2.6.27. Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11996
> > Subject : Tracing framework regression in 2.6.28-rc3
> > Submitter : Pekka Paalanen <[email protected]>
> > Date : 2008-11-09 10:13 (8 days old)
> > References : http://marc.info/?l=linux-kernel&m=122624392229317&w=4
> > Handled-By : Steven Rostedt <[email protected]>
>
> Steve, Ingo, did you get into an agreement on the patch? What should
> I test?

the fix is queued up in tip/tracing/urgent, will send it to Linus
today or tomorrow.

Ingo

2008-11-17 11:37:09

by James Bottomley

[permalink] [raw]

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

On Sun, 2008-11-16 at 18:29 +0000, Alan Cox wrote:
> > the majority of these patches have not been merged for over two weeks
> > (for almost three weeks in many cases and for over a _month_ in one case).
> > IMO, this is insane.]
>
> Some of them are quite serious too - some stuff is basically unusable in
> 2.6.28rc due to the vmalloc bug.
>
> Is there any reason why someone (Rafael ?) shouldn't simply submit all of
> those patches that look sensible, are reported to fix regressions and
> whose maintainer has not provided a reason to NOT apply them into the
> tree ?

There is for SCSI. Our two bugzilla entries each have several patches
(one has two, the other has four). The patches listed in the
regressions aren't necessarily going to be the ones applied (depending
on how the arguing and testing goes).

James

2008-11-17 12:15:09

by Soeren Sandmann

[permalink] [raw]

Subject: Re: [Bug #11954] sysprof tracer ABI regression in 2.6.28rc1

"Rafael J. Wysocki" <[email protected]> writes:

> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.27. Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11954
> Subject : sysprof tracer ABI regression in 2.6.28rc1
> Submitter : Eric Anholt <[email protected]>
> Date : 2008-11-04 22:14 (13 days old)
> Handled-By : Eric Anholt <[email protected]>
> Patch : http://bugzilla.kernel.org/attachment.cgi?id=18683&action=view

There are no ABI guarantees for the sysprof tracer at this point,
given that it is in debugfs and that there is no working userspace
code using it.

Soren

2008-11-17 16:25:00

by Ingo Molnar

[permalink] [raw]

Subject: Re: [Bug #11954] sysprof tracer ABI regression in 2.6.28rc1

* Soeren Sandmann <[email protected]> wrote:

> There are no ABI guarantees for the sysprof tracer at this point,
> given that it is in debugfs [...]

to avoid situations like this, it would be nice to print out the
format string itself in the trace header, in printf format string
style. That way if there's a trivial expansion in trace format, it can
be detected (and even followed) by user-space - without some ugly
version based API.

Ingo

2008-11-17 16:41:01

by Romano Giannetti

[permalink] [raw]

Subject: Re: [Bug #11947] 2.6.28-rc VC switching with Intel graphics broken

Rafael J. Wysocki wrote:

> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11947
> Subject : 2.6.28-rc VC switching with Intel graphics broken

Continue to malfunction. More details on the bugzilla entry. But basically, I had:

- one complete lock on VC switching (not switching back, just pressing ctrl-alt-f1).
- 3 two-plus minutes delay on VC switching
- a complete freeze on resuming from ram (not even SysRq-b working).

OTOH, it seems that VC malfunctioning happens only with "visual effect" aka
compiz on.

Back to 2.6.27.5. This is quite worrying now... should I try to start a
bisection? Although I know from experience that bisecting over a -rc1 is quite
painful.

Romano

--
Sorry for the disclaimer --- ¡I cannot stop it!

--
La presente comunicación tiene carácter confidencial y es para el exclusivo uso del destinatario indicado en la misma. Si Ud. no es el destinatario indicado, le informamos que cualquier forma de distribución, reproducción o uso de esta comunicación y/o de la información contenida en la misma están estrictamente prohibidos por la ley. Si Ud. ha recibido esta comunicación por error, por favor, notifíquelo inmediatamente al remitente contestando a este mensaje y proceda a continuación a destruirlo. Gracias por su colaboración.

This communication contains confidential information. It is for the exclusive use of the intended addressee. If you are not the intended addressee, please note that any form of distribution, copying or use of this communication or the information in it is strictly prohibited by law. If you have received this communication in error, please immediately notify the sender by reply e-mail and destroy this message. Thank you for your cooperation.

2008-11-17 21:03:52

by Tino Keitel

[permalink] [raw]

Subject: Re: [Bug #11982] Fan level 7 after resume wit 2.6.28-rc3

On Sun, Nov 16, 2008 at 17:35:18 +0100, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.27. Please verify if it still should be listed and let me know
> (either way).

The fix seems to be still missing from HEAD, but I tested it and it
fixed the regression that I noticed.

Regards,
Tino

2008-11-17 21:35:16

by Rafael J. Wysocki

[permalink] [raw]

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

On Sunday, 16 of November 2008, Maxim Levitsky wrote:
> Just to note, here on acer aspire one suspend to disk is broken too.
> System suspends, and then hangs.

At which point exactly does it hang?

What's the most recent kernel you tried?

> If I shutdown the system, and then attempt resume, it resumes, and then hangs.

Again, at which point does it hang exactly?

I assume this doesn't happen with 2.6.27. Is this correct?

Rafael

2008-11-17 22:08:55

by Tino Keitel

[permalink] [raw]

Subject: Re: [Bug #12038] Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo

On Sun, Nov 16, 2008 at 17:35:21 +0100, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.27. Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12038
> Subject : Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo
> Submitter : Tino Keitel <[email protected]>
> Date : 2008-11-09 20:28 (8 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=66036f5862883fcc9f7ff8550685a5a3de1a57e4
> References : http://marc.info/?l=linux-kernel&m=122626258429689&w=4
> Handled-By : Rafael J. Wysocki <[email protected]>
> Patch : http://marc.info/?l=linux-kernel&m=122661443120581&w=4

The patch works fine here. I applied it to 2.6.27.5 and resume works.

Regards,
Tino

2008-11-17 22:18:53

by Rafael J. Wysocki

[permalink] [raw]

Subject: Re: [Bug #12038] Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo

On Monday, 17 of November 2008, Tino Keitel wrote:
> On Sun, Nov 16, 2008 at 17:35:21 +0100, Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> >
> > The following bug entry is on the current list of known regressions
> > from 2.6.27. Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12038
> > Subject : Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo
> > Submitter : Tino Keitel <[email protected]>
> > Date : 2008-11-09 20:28 (8 days old)
> > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=66036f5862883fcc9f7ff8550685a5a3de1a57e4
> > References : http://marc.info/?l=linux-kernel&m=122626258429689&w=4
> > Handled-By : Rafael J. Wysocki <[email protected]>
> > Patch : http://marc.info/?l=linux-kernel&m=122661443120581&w=4
>
> The patch works fine here. I applied it to 2.6.27.5 and resume works.

Thanks for testing, I'm going to push it upstream shortly.

Best,
Rafael

2008-11-18 12:18:15

by Soeren Sandmann

[permalink] [raw]

Subject: Re: [Bug #11954] sysprof tracer ABI regression in 2.6.28rc1

Ingo Molnar <[email protected]> writes:

> * Soeren Sandmann <[email protected]> wrote:
>
> > There are no ABI guarantees for the sysprof tracer at this point,
> > given that it is in debugfs [...]
>
> to avoid situations like this, it would be nice to print out the
> format string itself in the trace header, in printf format string
> style. That way if there's a trivial expansion in trace format, it can
> be detected (and even followed) by user-space - without some ugly
> version based API.

It's not clear to me that sysprof userspace could realistically do
runtime detection. It would require (a) using sscanf() to parse the
output and (b) that only the types changed, not the actual content or
ordering. (a) is likely a non-starter performance-wise (the first
version actually did this and it was too slow), and (b) means there
are strict limits to what could be changed anyway.

Soren

Subject: 2.6.28-rc5: Reported regressions from 2.6.27

Subject: [Bug #11822] ACPI Warning (nspredef-0858): _SB_.PCI0.LPC_.EC__.BAT0._BIF: Return Package type mismatch at index 9 - found Buffer, expected String [20080926]

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

Subject: [Bug #11849] default IRQ affinity change in v2.6.27 (breaking several SMP PPC based systems)

Subject: [Bug #11875] radeonfb lockup in .28-rc (bisected)

Subject: [Bug #11858] Timeout regression introduced by 242f9dcb8ba6f68fcd217a119a7648a4f69290e9

Subject: [Bug #11905] lots of extra timer interrupts costing 2W

Subject: [Bug #11954] sysprof tracer ABI regression in 2.6.28rc1

Subject: [Bug #11898] mke2fs hang on AIC79 device.

Subject: [Bug #11903] regression: vmalloc easily fail

Subject: [Bug #11911] new PCMCIA device instance after resume - orinoco can't download firmware

Subject: [Bug #11913] USB/INPUT: slab error in cache_alloc_debugcheck_after(): double free?

Subject: [Bug #11906] 2.6.28-rc2 seems to fail at powering down the monitor when it should

Subject: [Bug #11899] sometime boot failed on T61 laptop

Subject: [Bug #11925] cdrom: missing compat ioctls

Subject: [Bug #11947] 2.6.28-rc VC switching with Intel graphics broken

Subject: [Bug #11958] [2.6.27.x =&gt; 2.6.28-rc3] Xorg crash with xf86MapVidMem error

Subject: [Bug #11970] gettimeofday return a old time in mmbench

Subject: [Bug #11965] regression introduced by - timers: fix itimer/many thread hang

Subject: [Bug #11996] Tracing framework regression in 2.6.28-rc3

Subject: [Bug #11982] Fan level 7 after resume wit 2.6.28-rc3

Subject: [Bug #12019] Major increase in the number of wakeups from C3

Subject: [Bug #12028] i915 DRM is broken in 2.6.28-rc4

Subject: [Bug #12020] scsi_times_out NULL pointer dereference

Subject: [Bug #11989] Suspend failure on NForce4-based boards due to chanes in stop_machine

Subject: [Bug #12031] DRM enabled kernel hangs hard on resume on x60

Subject: [Bug #12034] snd-hda-intel on Realtek ALC268 chip shows only Master volume (for playback)

Subject: [Bug #12038] Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo

Subject: [Bug #12040] iwlagn driver segfault in 2.6.28-rc3

Subject: [Bug #12041] 2.6.28-rc4 mem_cgroup_charge_common panic

Subject: [Bug #12042] USB hid blocks USB port in 2.6.28rc3

Subject: [Bug #12047] ACPI toshiba: only register rfkill if bt is enabled

Subject: [Bug #12049] Oops in acpi_system_wakeup_device_seq_show

Subject: Re: [Bug #11911] new PCMCIA device instance after resume - orinoco can't download firmware

Attachments:

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

Subject: Re: [linux-pm] 2.6.28-rc5: Reported regressions from 2.6.27

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

Subject: Re: [Bug #11996] Tracing framework regression in 2.6.28-rc3

Subject: Re: [Bug #11996] Tracing framework regression in 2.6.28-rc3

Subject: Re: [linux-pm] 2.6.28-rc5: Reported regressions from 2.6.27

Subject: Re: [Bug #11996] Tracing framework regression in 2.6.28-rc3

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

Subject: Re: [Bug #11954] sysprof tracer ABI regression in 2.6.28rc1

Subject: Re: [Bug #11954] sysprof tracer ABI regression in 2.6.28rc1

Subject: Re: [Bug #11947] 2.6.28-rc VC switching with Intel graphics broken

Subject: Re: [Bug #11982] Fan level 7 after resume wit 2.6.28-rc3

Subject: Re: 2.6.28-rc5: Reported regressions from 2.6.27

Subject: Re: [Bug #12038] Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo

Subject: Re: [Bug #12038] Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo

Subject: Re: [Bug #11954] sysprof tracer ABI regression in 2.6.28rc1

Subject: [Bug #11958] [2.6.27.x => 2.6.28-rc3] Xorg crash with xf86MapVidMem error